Yuav tsum qhia ib xim luam tawm ntawm screen? Hloov CMYK mus rau RGB muab rau koj qhov sib npaug hauv lub teeb ntawm koj cov roj percentages — cov nqi uas monitor, mockup lossis web page tuaj yeem zaub tau.
Yuav ua li cas CMYK rau RGB hloov ua haujlwm
- Hloov tag nrho plaub percentages mus ua fractions nruab nrab 0 thiab 1.
- Thov key component ua ntej: txhua channel raug scaled los ntawm (1 − K).
- Xam R = 255 × (1 − C) × (1 − K), G = 255 × (1 − M) × (1 − K) thiab B = 255 × (1 − Y) × (1 − K).
- Rho txhua channel puag rau tus lej tag nrho nruab nrab 0 thiab 255.
Qhia ua piv txwv
Kwve yees. Ib qho screen tuaj yeem qhia ntau xim dua li inks ua, yog li qhov RGB tshwm sim feem ntau zoo ci thiab saturated dua qhov luam tawm.
CMYK thiab RGB piav
Dab tsi yog CMYK?
CMYK yog qauv plaub-ink siv hauv kev luam: cyan, magenta, yellow thiab key (black), txhua tus ua feem pua los ntawm 0 txog 100. Ink thim teeb es tsis txhob tso tawm nws, yog li CMYK npog tsawg xim dua zaub — yog vim li cas cov xim ci ncoo ntawm zaub qee zaum zoo li tsis ci thaum luam tawm.
- Syntax:
- cmyk(C%, M%, Y%, K%)
- Range:
- 0–100% per ink
- Zoo tshaj rau:
- print, packaging, press-ready artwork
Dab tsi yog RGB?
RGB piav txog xim ua peb lub channel ntawm teeb — liab, ntsuab thiab xiav — txhua tus los ntawm 0 txog 255. Nws cia raws li cov zaub ua haujlwm tiag: tag nrho peb ntawm 255 yog dawb, tag nrho ntawm 0 yog dub. RGB yog qhov kev xaiv thaum twg koj xav xam nrog xim, thiab rgba() ntxiv kev pom qhov muag (transparency) ntxiv.
- Syntax:
- rgb(R, G, B)
- Range:
- 0–255 per channel
- Zoo tshaj rau:
- code, canvas, transparency with rgba()
CMYK rau RGB daim ntawv reference
Cov xim CSS feem ntau, hloov los ntawm CMYK rau RGB.
| Xim | CMYK | RGB |
|---|---|---|
| black | cmyk(0%, 0%, 0%, 100%) | rgb(0, 0, 0) |
| white | cmyk(0%, 0%, 0%, 0%) | rgb(255, 255, 255) |
| red | cmyk(0%, 100%, 100%, 0%) | rgb(255, 0, 0) |
| lime | cmyk(100%, 0%, 100%, 0%) | rgb(0, 255, 0) |
| blue | cmyk(100%, 100%, 0%, 0%) | rgb(0, 0, 255) |
| yellow | cmyk(0%, 0%, 100%, 0%) | rgb(255, 255, 0) |
| orange | cmyk(0%, 35%, 100%, 0%) | rgb(255, 166, 0) |
| teal | cmyk(100%, 0%, 0%, 50%) | rgb(0, 128, 128) |
| purple | cmyk(0%, 100%, 0%, 50%) | rgb(128, 0, 128) |
| gray | cmyk(0%, 0%, 0%, 50%) | rgb(128, 128, 128) |